PEDIGREE OF ZOOPHYTES. 



145 



Ctenophora 

 Taeniata Lobata 



Hydromedusse 

 Khizostomeae 



V_ 



Saccata ' 

 Stenosioma 



Semceostomeae 



DiSCOMEDUSJi 



Trachymedusse 



EUEySTOMA 



Lncernaria 

 Calycozoa 



Siplionopliora 



Leptomedus-e 

 Coralla 



Octocoralla 

 Hexacoralla 



Tetracoralla 

 Spongiae 

 Fibrospongiffi Calcispongise 



Chalj'nthina Leucones Sycones 



Hexactinella 



Geodina Dyssycus Sycnrus 



Myxospongia 

 Halisarcina 



Ascone3 



Chalynthus 



Hydroida 



Cordylophora 

 j Hydra 



Uydeoidj 



Procorallum 

 Olynthus I 



Archispongias 



Hydroida 

 Archydra 



Protascus 



Gastrasa 



VOL. II. 



